Eric Avery, the former Jane's Addiction bassist who was to take part in Nine Inch Nails' summer tour, has left the influential industrial-rock group. Avery announced his departure Wednesday in a Facebook post, describing his decision as "a tough call" and admitting, "I don't know if it's the right one."

In February, nearly four years after Reznor put Nine Inch Nails on hiatus following its so-called Wave Goodbye Tour, the frontman revealed that he'd re-formed the group with a fresh lineup featuring Avery, King Crimson's Adrian Belew and Josh Eustis of Telefon Tel Aviv.

It's to begin an upcoming run of shows July 26 at Japan's Fuji Rock Festival; other dates include Lollapalooza in Chicago on Aug. 2, England's Reading Festival on Aug. 25 and the Voodoo Festival in New Orleans in November.

But in his post, Avery said that "as the tour dates kept growing," he "just got overwhelmed." The bassist recently toured as a member of Garbage and suggested he was unsettled by "the idea of leaving town for another year and a half, and with all the intensity that Nails demands."

"I really want to focus on my musical life here in L.A., on film work in particular," he added.

Avery, who briefly rejoined Jane's Addiction from 2008 to 2010, said that Reznor "understands all this and appreciated my pulling the plug now instead of deep into 2013."